3149206805 has 8 divisors (see below), whose sum is σ = 3943354752. Its totient is φ = 2409827728.

The previous prime is 3149206793. The next prime is 3149206859. The reversal of 3149206805 is 5086029413.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3149206805 - 2⁶ = 3149206741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13692089 + ... + 13692318.

It is an arithmetic number, because the mean of its divisors is an integer number (492919344).

Almost surely, 2^3149206805 is an apocalyptic number.

It is an amenable number.

3149206805 is a deficient number, since it is larger than the sum of its proper divisors (794147947).

3149206805 is a wasteful number, since it uses less digits than its factorization.

3149206805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27384435.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 3149206805 is about 56117.7940140202. The cubic root of 3149206805 is about 1465.7741570321.

The spelling of 3149206805 in words is "three billion, one hundred forty-nine million, two hundred six thousand, eight hundred five".